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CVE-2020-3999

MEDIUM · CVSS 6.5EPSS 0.4%EU EUVD

VMware ESXi (7.0 prior to ESXi70U1c-17325551), VMware Workstation (16.x prior to 16.0 and 15.x prior to 15.5.7), VMware Fusion (12.x prior to 12.0 and 11.x prior to 11.5.7) and VMware Cloud Foundation contain a denial of service vulnerability due to improper input validation in GuestInfo. A malicious actor with normal user privilege access to a virtual machine can crash the virtual machine's vmx process leading to a denial of service condition.

Key facts

CVSS score
6.5 (v3.1)
Severity
MEDIUM
CVSS vector
CVSS:3.1/AV:L/AC:L/PR:L/UI:N/S:C/C:N/I:N/A:H
Weakness (CWE)
CWE-20
EPSS score
0.4% (31th percentile)
In CISA KEV
No
In EU EUVD
Yes (EUVD-2020-25264)
Published
December 21, 2020
NVD last modified
June 17, 2026
Status
Analyzed

EU Vulnerability Database (EUVD)

This vulnerability is also tracked by ENISA as EUVD-2020-25264 in the EU Vulnerability Database. Last updated in EUVD on August 4, 2024.

View on the EU Vulnerability Database

Affected products

  • apple / mac os x
  • vmware / esxi
  • vmware / esxi
  • vmware / esxi
  • vmware / esxi
  • vmware / esxi
  • vmware / fusion
  • vmware / workstation

Certified products that may be affected

1 FIPS 140 or Common Criteria certified product, from automated matching by sec-certs.org.

References

Last updated September 17, 2026 · Source: NVD, CISA KEV, FIRST.org EPSS

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